26278989325 has 6 divisors (see below), whose sum is σ = 32585946794. Its totient is φ = 21023191440.

The previous prime is 26278989301. The next prime is 26278989353. The reversal of 26278989325 is 52398987262.

It can be written as a sum of positive squares in 3 ways, for example, as 5057200996 + 21221788329 = 71114^2 + 145677^2 .

It is a de Polignac number, because none of the positive numbers 2^k-26278989325 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 525579762 + ... + 525579811.

Almost surely, 2^26278989325 is an apocalyptic number.

26278989325 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

26278989325 is a deficient number, since it is larger than the sum of its proper divisors (6306957469).

26278989325 is a wasteful number, since it uses less digits than its factorization.

26278989325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1051159583 (or 1051159578 counting only the distinct ones).

The product of its digits is 26127360, while the sum is 61.

The spelling of 26278989325 in words is "twenty-six billion, two hundred seventy-eight million, nine hundred eighty-nine thousand, three hundred twenty-five".